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Homework Help: I'm blind when it comes to angles

  1. Oct 20, 2007 #1
    did i set up my force diagram right? my teacher gave us soln's but i think there's an error.

    also, could i get advice on how to approach determining how to place the angles correctly in the diagram, i'm blind.


    http://img136.imageshack.us/img136/5711/angleqg6.jpg [Broken]
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Oct 20, 2007 #2


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    Dearly Missed

    Your angles are right.
    Try imagine the N,T-axes to initially have been superimposed on the y,x-axes, respectively.
    Then rotate the N-T system so that T gains angle theta to the x-axis.
    Therefore, the angle between the N and y axes must also be theta.
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